Changed pytorch-lightning requirement to lightning

pytorch-lightning is in the process of changing their package names to
simply lightning.

conda/meta.yaml

@@ -36,7 +36,7 @@ requirements:
     - torchvision  {{ torchvision }}
     - tqdm {{ tqdm }}
     - tensorboard {{ tensorboard }}
-    - pytorch-lightning {{ pytorch_lightning }}
+    - lightning {{ lightning }}
     - clapper
   run:
     - python >=3.9
@@ -53,7 +53,7 @@ requirements:
     - {{ pin_compatible('torchvision') }}
     - {{ pin_compatible('tqdm') }}
     - {{ pin_compatible('tensorboard') }}
-    - {{ pin_compatible('pytorch-lightning') }}
+    - {{ pin_compatible('lightning') }}
     - clapper
 
 test:

pyproject.toml

@@ -41,7 +41,7 @@ dependencies = [
    "pillow",
    "torch>=1.8",
    "torchvision>=0.10",
-   "pytorch-lightning",
+   "lightning",
    "tensorboard",
 ]